{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["protein", "DNA", "cell type", "RNA", "cell line"], "input": "DNA binding by all four of these Rel-related factors is blocked by selective chemical modification of lysine and arginine residues , suggesting that both of these basic amino acids are required for binding to the kappa B element ."}
{"protein": ["Rel-related factors"], "DNA": ["kappa B element"], "cell type": [], "RNA": [], "cell line": []}